The Cryosphere
The Cryosphere
TC
Articles | Volume 18, issue 10
Articles | Volume 18, issue 10
https://doi.org/10.5194/tc-18-4743-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-18-4743-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 10
Research article
 | 
18 Oct 2024
Research article |  | 18 Oct 2024

The cryostratigraphy of thermo-erosion gullies in the Canadian High Arctic demonstrates the resilience of permafrost

Samuel Gagnon, Daniel Fortier, Étienne Godin, and Audrey Veillette

Supplement

https://doi.org/10.5194/tc-18-4743-2024-supplement

Data sets

Soil properties and computed tomography scans (CT-scans) of two thermo-erosion gullies and the adjacent tundra polygons on Bylot Island, Nunavut, Canada, v. 1.0 (2013-2016) D. Fortier et al. https://doi.org/10.5885/45900CE-763A49F2D1F2442A

Thaw front depth at the bottom, on the slopes and on the adjacent tundra polygons of two thermo-erosion gullies on Bylot Island, Nunavut, Canada, (2017-2018) D. Fortier et al. https://doi.org/10.5885/45903CE-33A7E0A483AD4C3D

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Short summary
Thermo-erosion gullies (TEGs) are one of the most common forms of abrupt permafrost degradation. While their inception has been examined in several studies, the processes of their stabilization remain poorly documented. For this study, we investigated two TEGs in the Canadian High Arctic. We found that, while the formation of a TEG leaves permanent geomorphological scars in landscapes, in the long term, permafrost can recover to conditions similar to those pre-dating the initial disturbance.
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